Gasolene-indicator.



M. H. PRESTON.

GASOLENB INDICATOR. APPLIOATION FILED APB. 17, 1909.

Patented Mar. 15. 1910.

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ticularly adapted for u se in connection with the Aforward ones 2 beino' shown.

manner. in which my indicator can be-ap- UNTTED STATES.'

PATENT orifice GASOLENE-INDICATOR.

Specification of retiennent. y Patented Mar.15,191o.

Application. led April 17, 1909. Serial No. 499,576.

To all whom it my concern:

Be itknown that I, Mr n'r'A HELEN Pans TON, of the city of lVinnipeg, inl the Province of Manitoba, Canada, have inf vented certain vnew and useful Improve# ments in Gasolene-Indicatorsof Awhich the following'isthe specification.

My invention relates to an indicatorparautomobiles, motor boats, and other suchv machines wherein gasolene or a similar liquid is used as an explosive7 and the object of the invention is vto provide a device by which it is possible for the partygoperating the machine to be constantl aware of the amount of gasolene carried the machine in its tank, thereby preventingthe possi'- bility of ruiming out. of theliquid before reaching the destination.

lt. consists essentially in a. suitably supJ,

ported transparent tube appearing-with1n visual range of an operator or driver, means ply tank, suitable stop cocks for draining the tube and -for cuttingoifjtheconnection from the tank, a valv'eatI thelupper .end of the tube, and a graduateduscaleadjoining the tube, the parts .being arranged and constructed as hereinafter more .particularly:described.

Figure l represents'a side elevationofthe front portion of an automobileishowing'one plied. Fig.' 2 represents a frontelevation of a portion of the dash -board of-.an auto# mobile showing the indicator-attached. Fig. 3 is an 'enlarged detailed sectional view through the indicator audits supporting brackets, certain parts being -shown inside elevation. Fig. 4 is an enlarged detailed perspective View of the valve stem.

In the drawings like characters of referpince indicate corresponding parts in each lle. gl represents the ordinary automobile frame supported upon the usual wheels, only 3 represents the dash ioard and 4 the front seat, it being understood that the Gasolene supply tank 5 appears as is-usua directly beneath the. seat.

6 and 7 represent brackets or arms secured at their innerends in any desirable manner to the dash board 3.. The lower bracket 7 the upper bracket is provided with a .vertically directed opening 9 which receives snugly the glass tube 10. The lower end ofthe tube rests on the bracket 7 -which is cored out at 11 thereby,forminga ledge at 12 .on which the tube bears. An opening 13 15 1s a uct leading from the openin or duct 13 and `closed by asecond stop coc 16 leads directlytto the bottom of the gasolene tank.

17 is-a`.st'uiiing-box adapted to receive the lowerend of the tube 10 and toscrew into the bracket -7. f Y

18 is packing material' of anyl kind inserted directly beneath the packing box 17 in such a manner that when the packing box 'is screwed down it presses the packing material tightly aga-instthe lower end-of thc tube thereby preventingany leakage of gasolene from the tube.

19 is a cap screw designed to screv to the bracket 6, the bracket being recessed at 20 toreceive it and the end of the tube which passes upwardly through the opening 9.

19 is packing material of any suitable kind located around the tube directly beneat-l1' theca screw-'19 iu such a manner that when t e cap screw is tightened or screwed down the packing material is pressed ti htly against'the upper end of the tube there y preventing the leakage of gasolene. The cap screw is provided with'a vcr- 'tically directed opening 21'axially alined with the tube and has its upper 'side faced at 22 to receive the head 23 of the threaded valve stem 24 which passes` downwardly through the opening.

25 1s a cork -or other such like substancesecured to the lower end of the' stem 24 and 'forming a float valve.

26 is a-metallic plate in the form' of a washer located on the stem. and directly above the cork. The cork and plate are in this` way housed within the cap screw directly above the upper end of vthe tube. The interior of the cap screw is faced at 27 so that when the plate rests against it a closed joint is made between these two parts.

is supplied with an enlargement atM8 and The head 23 is provided with a set of transcontinuous with vthe bore of the tube .passes which is connectedv with a pipe 16 which velue channels 28 which are designed to allow the air andv gasolene vapors to pass to and from the interior of the cap.

29 is a graduated scale located immediately to the side of the tube l0 and graduated so that 'it indicates according to the ht of liquid inthe tube the number of hei ga ons or fraction thereof in the tube. It 1s ofcourse toybe understood that the level of the indicator has to be siich that when 'there 'isione gallon of gasolene in the tank thelevel of the gasolene in the tank indicates one gallon ont e scale. I

The object of the float Valve is now described.

W'hen .a machine is runnin von level ground the gasolene and air are ree to pass upwardly through the opening 21 and channels 28. If the tank be fairly well filled with gasolene and the machine'run up or down an'inclined roadwaythe gasolene rises in the tube 10, and would if the valve were not provided leak out and be in this way wasted. However with this indicator as soon as the gasolene passes higher than desirecl it carries the float valve upwardly with it the valve closing over the opening 21. As soon as the liquid subsides again the valve drops owing to the weight of the plate 26, and again allows the vapors and air to pass oil".

The channels 28 are provided on the under face of the head so that there is small possibilit of foreign substanceaccumulating and c o'sing lthe opening 21. The stem 24 is threaded so as to cut away'any foreign substance that might get into the opening 22.

30 is a rod connecting the outer ends of the brackets 6 and 7 and forms a guard for the tube 10.

I have Jfound it desirable to place a ball 31 in the tube 10 such ball being highly colored and adapted to float on the liquid in the tube so that the height of the gasolene can be readily ascertained.

I have constructed the various portions in such a manner that they can be readily taken apart and renewed, and have taken particular care to construct the cap sci'ew, brackets, and packing box in a manner so that a glass can be readily removed in event of breakage and a new 'one substituted.

What I claim as'my invention is: l. In an indicator of the class described,

the combination with the liquid supply tank, of a vertically extending transparent tube, supportingy brackets therefor, the lower Ao;t said brackets having an enlargement thereon; said enlargement having ducts therein communicating wit-h the interior of the tube at the bottom, stop cocks for said ducts, one of said sto .lcocks being connected with the supply tan a cap screw closing over the upper end of the tube and having a verticallyv directed opening passing therethrough; a ioat valve housed by the cap sc rew said valve having a shank passing upwardly freely through the opening inthe cap screw, and ,provided with an enlarged head, the head normally closing over the opening, there being cross channels within the head communicating with the opening, said valve'being adapted to seat onthe inner face of the cap screw to close the opening,

.as and for the purpose specified.

2. In an indicator of the class described, theconibination with the liquid supply tank, of a vertically directed transparent tube, an upper and a lower supporting bracket therefor, the lower of the Brackets heilig provided with an enlargement, and having a portion thereof coredout to receive theend of the tube, and the upper of the brackets having a vertically directed opening therein through A which thc tube passes; means connecting the lower end of the tube with the supply tank; a stufiingbox adapted to receive the lower end of the tube and to screw into the lower bracket; a cap screw adapted to receive the upper end of the tube and to screw into the upper of the brackets, there being a suitable packing material located around the tube and beneath the cap screw and -the stuiling box said cap having an opening therein; a float valve carried by the cap screw and having a shank assing upwardly through the opening provided in the cap, the-said valve in the normal osition being adapted to admit air to andp allow the escape of Vapor from the tube, and to be seated on the inner face of the screw when Hoated by the liquid in the tube, as and for the purpose specified. Signed at Winnipeg, in the Province of Manitoba, this 29th day of March 1909.

MYRTA HELEN PRESTON. lVitneSses:

G. S. RoXnUiiGI-i,

M. A. SoMnizviLLn. 

